What is chronic traumatic encephalopathy?

An autopsy performed one year after Kansas City Chiefs linebacker Jovan Belcher fatally shot his 22-year-old girlfriend and killed himself in front of his coach and the team's general manager found signs of chronic traumatic encephalopathy (CTE).

An autopsy performed one year after Kansas City Chiefs linebacker Jovan Belcher fatally shot his 22-year-old girlfriend and killed himself found signs of chronic traumatic encephalopathy (CTE). Find out more about chronic traumatic encephalopathy, the disease several former NFL pros claim they are now suffering from due to hits on the field.